--- /dev/null	2020-01-02 04:43:18.583999853 +0000
+++ new/test/lib/jdk/test/lib/JDKToolFinder.java	2020-01-30 06:38:12.267652024 +0000
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package jdk.test.lib;
+
+import java.io.FileNotFoundException;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+public final class JDKToolFinder {
+
+    private JDKToolFinder() {
+    }
+
+    /**
+     * Returns the full path to an executable in jdk/bin based on System
+     * property {@code test.jdk} or {@code compile.jdk} (both are set by the jtreg test suite)
+     *
+     * @return Full path to an executable in jdk/bin
+     */
+    public static String getJDKTool(String tool) {
+
+        // First try to find the executable in test.jdk
+        try {
+            return getTool(tool, "test.jdk");
+        } catch (FileNotFoundException e) {
+
+        }
+
+        // Now see if it's available in compile.jdk
+        try {
+            return getTool(tool, "compile.jdk");
+        } catch (FileNotFoundException e) {
+            throw new RuntimeException("Failed to find " + tool +
+                    ", looked in test.jdk (" + System.getProperty("test.jdk") +
+                    ") and compile.jdk (" + System.getProperty("compile.jdk") + ")");
+        }
+    }
+
+    /**
+     * Returns the full path to an executable in jdk/bin based on System
+     * property {@code compile.jdk}
+     *
+     * @return Full path to an executable in jdk/bin
+     */
+    public static String getCompileJDKTool(String tool) {
+        try {
+            return getTool(tool, "compile.jdk");
+        } catch (FileNotFoundException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    /**
+     * Returns the full path to an executable in jdk/bin based on System
+     * property {@code test.jdk}
+     *
+     * @return Full path to an executable in jdk/bin
+     */
+    public static String getTestJDKTool(String tool) {
+        try {
+            return getTool(tool, "test.jdk");
+        } catch (FileNotFoundException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private static String getTool(String tool, String property) throws FileNotFoundException {
+        String jdkPath = System.getProperty(property);
+
+        if (jdkPath == null) {
+            throw new RuntimeException(
+                    "System property '" + property + "' not set. This property is normally set by jtreg. "
+                    + "When running test separately, set this property using '-D" + property + "=/path/to/jdk'.");
+        }
+
+        Path toolName = Paths.get("bin", tool + (Platform.isWindows() ? ".exe" : ""));
+
+        Path jdkTool = Paths.get(jdkPath, toolName.toString());
+        if (!jdkTool.toFile().exists()) {
+            throw new FileNotFoundException("Could not find file " + jdkTool.toAbsolutePath());
+        }
+
+        return jdkTool.toAbsolutePath().toString();
+    }
+}